That means that the cross-section is the same throughout the length of the prism. The polygon shape of the cross-section may be used to name the prism. A prism with a triangle-shaped cross-section ...

A prism is a 3D shape with a constant polygon ... Platonic solids close platonic solidA polyhedron with regular polygon faces. These are the tetrahedron, cube, octahedron, dodecahedron and ...

A polygon is a closed 2D shape with straight sides that meet at vertices. Polygons can be regular or irregular. If all the straight sides of a shape are the same length and interior angles are the ...